package com.kuang.controller;

import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.util.StringUtils;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;

import javax.servlet.http.HttpSession;

@Controller
public class LoginController {

    @RequestMapping("/user/login")
    public String login(@RequestParam("username") String username,
                        @RequestParam("password") String password,
                        Model model,
                        HttpSession session) {

        //用户名不为空且密码为123456则登录成功
        if (!StringUtils.isEmpty(username) && "123456".equals(password)) {
            //登录成功
            session.setAttribute("username",username);
            return "redirect:/main.html";
        } else {
            //登录失败
            //存储错误信息
            model.addAttribute("msg", "用户名或密码输入错误");
            return "index";
        }
    }

    @RequestMapping("/user/logout")
    public String logout(HttpSession session){
        //清除session 返回index.html页面
        session.invalidate();
        return "/index.html";
    }

}
